<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
<div id="app">
  <div>
    1245{{text}}
  </div>
  <input type="text" id="a" v-model="text">
  {{text}}
  <button @click="onClickHandle">点击</button>
  <div v-html="tpl"></div>
</div>
</body>
</html>